401959 has 2 divisors, whose sum is σ = 401960. Its totient is φ = 401958.

The previous prime is 401957. The next prime is 401981. The reversal of 401959 is 959104.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 401959 - 2¹ = 401957 is a prime.

Together with 401957, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200979 + 200980.

It is an arithmetic number, because the mean of its divisors is an integer number (200980).

2⁴⁰¹⁹⁵⁹ is an apocalyptic number.

401959 is a deficient number, since it is larger than the sum of its proper divisors (1).

401959 is an equidigital number, since it uses as much as digits as its factorization.

401959 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 401959 is about 634.0023659262. The cubic root of 401959 is about 73.8007177707.

It can be divided in two parts, 40195 and 9, that added together give a palindrome (40204).

The spelling of 401959 in words is "four hundred one thousand, nine hundred fifty-nine".